Headline:
Dense Fog Advisory issued October 13 at 6:55AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
October 13, 2026 - 5:55am
Expires:
October 13, 2026 - 11:00am
Description:
* WHAT...Highly variable visibility as low as one quarter of a mile
in dense fog.
* WHERE...Portions of central, north central, and southwest Montana.
* WHEN...Until noon MDT today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Below freezing temperatures may lead to a
glaze of ice on surfaces, most notably on bridges and overpasses.
Instruction:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
Area Description:
Eastern Toole and Liberty; Hill County; Northern Blaine County; Bears Paw Mountains and Southern Blaine; Fergus County below 4500ft; Helena Valley; Meagher County Valleys; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley
Forcast Office:
NWS Great Falls MT
Sender:
w-nws.webmaster@noaa.gov